if (isset($_POST['id'])) { $id = $_POST['id']; $name = $_POST['name']; $num = $_POST['num']; $price = $_POST['price']; } mysql_select_db('price'); $sql ="UPDATE webprice SET name='".$_POST['name']."', num=".$_POST['num'].",price=".$_POST['price']." WHERE id=".$_POST['id']; $sel = mysql_query($sql); $result = mysql_fetch_assoc($sel); if($result){ header("Location: index.php"); }else{ echo "<p>更新失败。</p>"; }/错误提示:Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in D:\phpStudy\WWW\m3\update.php on line 14 更新失败。
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